NAME:__________________________________ STUDENT#:______________________________ YORK UNIVERSITY FACULTY OF SCIENCE AND ENGINEERING SC/BIOL 3130N (3.0) – MOLECULAR BIOLOGY II MIDTERM I – January 31st‚ 2012‚ VERSION A INSTRUCTIONS: 1) Please sign the sign-in sheet that will be circulated during the exam. 2) Multiple choice – 12 questions‚ one mark each. Choose the best single mostcorrect answer and fill in all answers on the scantron sheet provided. Questions where more than one answer is selected
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Biology Digestion IA 13/03/2013 Jason Gao Rationale: Digestion is the chemical breakdown of food into smaller components that are more easily absorbed. Digestion is a form of catabolism: a breakdown of large food molecules to smaller ones. When food enters into stomach‚ gastric juice starts protein digestion. Gastric juice mainly contains hydrochloric acid and pepsin. The pH value of hydrochloric in the stomach
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Evolution Unit: Objectives AP Biology Upon the completion of the textbook readings in Chapters 22-26 you should be able to: Chapter 22 1. Explain how the principle of gradualism and Charles Lyell’s theory of uniformitarianism influenced Darwin’s ideas about evolution. The basic idea of natural selection is that a population of organisms can change over the generations if individuals having certain heritable traits leave more offspring than other individuals. The result of natural selection
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AP BIOLOGY CELL UNIT ACTIVITY #5 NAME_____________________ DATE___________HOUR_____ CELL TRANSPORT MEMBRANE PROPERTIES PASSIVE TRANSPORT CHARACTERISTICS: DIFFUSION: Cell Unit Activity #5 page 1 OSMOSIS : ISOTONIC ANIMAL CELLS Cell Unit Activity #5 page 2 HYPOTONIC HYPERTONIC PLANT CELLS OSMOREGULATION – ADAPTATIONS Paramecium Fresh Water Bony Fish FACILITATED D IFFUSION: Cell Unit Activity #5 page 3 Marine Bony Fish ACTIVE TRANSPORT CHARACTERISTICS:
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Evolution Evolution- change in a population over time Charles Darwin: A Naturalist (type of biologist) Sailed with an explorer on the HMS Beagle to the Galapagos Island in 1831 (22 years old) He observed Turtles: On the island they were huge and had to eat food up high (the neck would extend) over time‚ the shell changed. The ones with the short necks died off because of lack of food Published the book: Origin of Species By Means of Natural Selection (to beat Wallace) He’s Catholic Owen-
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NAME: ____________________________ DATE:____________________ Leaving Certificate Biology: Scientific Method Leaving Certificate Biology Scientific Method Please see Teachers’ Notes for explanations‚ additional activities‚ and tips and suggestions. Levels Students’ English-language skills should be developed to Level B1 during funded Language Support. Mainstream subject learning will require the development of skills at Level B2 if students are to cope with public examinations. Language focus
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Marine Biology The field of marine biology‚ the study of organisms within their environment of an ocean‚ lake‚ or river‚ has a very broad range of occupations. Marine biologists try to discover how organisms grow and develop‚ how they get food‚ how their bodies function‚ and how their life relations correspond to other organisms. They also use laboratory experiments to increase knowledge of human life processes. This is a great career for me to enter because there are so many opportunities to
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fact that 95% of our sea is unexplored has always fascinated me. We use water in everyday life and without it there would be no life on Earth‚ yet we know so little about it. Both my academic and personal life has developed my interest in marine biology. My interest in wildlife and outdoor work drove me to successfully apply for the post of volunteer assistant at Washington Wetlands centre‚ I started in January 2013 and attend at least once a week. Hand rearing Chilean flamingos involved syringe
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research everything there is to know about taking a career choice in Marina Biology. A lot of people say that its not the smartest way to go only due to the fact that there isn’t a lot of job openings in this field. It is a very hard decision whether I should or not hopefully writing this essay will help me decide whether I should go into this field. This essay will give you all the facts about this job. Marine biology is the scientific study of animals and plants that live in salt water. If you
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Darwin founded a new branch of life science‚ evolutionary biology. Four of his contributions to evolutionary biology are especially important‚ as they held considerable sway beyond that discipline. The first is the nonconstancy of species‚ or the modern conception of evolution itself. The second is the notion of branching evolution‚ implying the common descent of all species of living things on earth from a single unique origin. Many people are familiar with how Darwin came up with the theory of
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